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Random
Hot problems
CCC '24 J3 - Bronze Count
COCI '08 Contest 4 #6 Periodni
APIO '09 P1 - Digging for Oil
COCI '23 Contest 5 #1 Zlagalica
Fibonacci Sequence
CCC '24 J5 - Harvest Waterloo
Segment Tree Test
Problem
Category
Points
AC %
Users
COI '20 #2 Cigle
COCI
20p
16.6%
19
COI '20 #3 Izvanzemaljci
COCI
25p
0.9%
1
COI '20 #4 MalnaRISC
COCI
20p
2.9%
8
3n+1
Uncategorized
3
39.3%
1690
Comparing Arrays
Uncategorized
15p
17.0%
62
Data Compression
Uncategorized
15p
0.0%
0
Ray's Tricky Connectivity
Uncategorized
10p
22.2%
76
Non-constructive Constant Time Algorithm
Fun Math
20
9.1%
2
Counting Problem
Uncategorized
17
45.5%
5
CPC '19 Contest 1 P0 - Shoes
Uncategorized
3p
56.8%
262
CPC '19 Contest 1 P1 - Distance
Uncategorized
3p
55.3%
337
CPC '19 Contest 1 P2 - Luggage
Uncategorized
7p
26.8%
322
CPC '19 Contest 1 P3 - Admiral Kuznetsov
Uncategorized
12p
15.8%
76
CPC '19 Contest 1 P4 - Sorting Practice
Uncategorized
12p
7.4%
19
CPC '19 Contest 1 P5 - A Puzzlingly Puzzling Puzzle Problem 😎
Uncategorized
17p
9.1%
9
CPC '19 Contest 1 P6 - Maintaining Some Coins
Uncategorized
20p
1.9%
10
CPC '21 Contest 1 P0 - AQT and Alphabet
Uncategorized
3
71.5%
366
CPC '21 Contest 1 P1 - AQT and Fractions
Uncategorized
5p
16.2%
252
CPC '21 Contest 1 P2 - AQT and Multiset
Uncategorized
7p
22.6%
146
CPC '21 Contest 1 P3 - AQT and Circles
Uncategorized
10p
13.6%
107
CPC '21 Contest 1 P4 - AQT and Directed Graph
Uncategorized
12p
30.1%
250
CPC '21 Contest 1 P5 - AQT and Modern Art
Uncategorized
15p
15.8%
45
CPC '21 Contest 1 P6 - AQT's Break Time is Over
Uncategorized
20p
7.2%
26
CPC '21 Contest 1 P7 - AQT and Quarantine
Uncategorized
20p
15.5%
15
COCI '06 Regional #1 Bard
COCI
7
27.6%
266
COCI '06 Regional #2 Tetris
COCI
10
52.2%
39
COCI '06 Regional #3 Firefly
COCI
10
38.0%
205
COCI '06 Regional #4 Circle
COCI
15
36.7%
24
COCI '07 Regional #1 Platforme
COCI
7
29.3%
368
COCI '07 Regional #2 Nikola
COCI
10
32.1%
207
COCI '07 Regional #3 Kuhar
COCI
12
21.1%
97
COCI '07 Regional #4 Jednakost
COCI
12p
14.0%
60
COCI '08 Regional #1 Nop
COCI
5
33.2%
163
COCI '08 Regional #2 Majstor
COCI
5
51.2%
164
COCI '08 Regional #3 Cijevi
COCI
10
33.3%
31
COCI '08 Regional #4 Tablica
COCI
15
34.1%
24
COCI '08 Regional #5 Reljef
COCI
15
52.8%
20
COCI '08 Regional #6 Cvjetici
COCI
12
46.8%
176
CSPC '15 #1 - The Card Game
CSPC
3
16.6%
162
CSPC '15 #2 - Build Season
CSPC
3
40.3%
154
CSPC '15 #3 - Spell Check
CSPC
7
27.9%
81
CSPC '15 #4 - Reading Logs
CSPC
5
11.5%
22
CSPC '15 #5 - Averages
CSPC
5
18.0%
46
CSPC '15 #6 - Attendance
CSPC
7p
41.4%
31
Brandon's Cryptographically Secure Pseudorandom Number Generator
Uncategorized
30p
0.8%
2
CTSC '15 P5 - Calendar Management
China NOI
25
33.3%
1
CTU Open Contest 2017 - Amusement Anticipation
ICPC
5
23.9%
30
CTU Open Contest 2017 - Pond Cascade
ICPC
7
37.8%
6
CTU Open Contest 2017 - Chessboard Dancing
ICPC
7
75.0%
6
CTU Open Contest 2017 - Go Northwest!
ICPC
7
46.2%
9
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